Spray method
Pesticide preparations for liquid use (except for ultra-low-volume sprays) such as emulsifiable concentrates, wettable powders, and soluble powders are prepared by adding water to prepare emulsions, solutions, and suspensions for spraying. This method of application is called spray method. . Pay attention to the following matters: First, the selection of the sprayer should be excellent in function to ensure the quality of the spray; secondly, the plant has a thick waxy layer on the outside, which is not conducive to the liquid, and can be added with additives such as penetrant; the third is to pay attention to the water quality of the water. Choose clean water (well water or river water); fourth, pay attention to prevent environmental pollution.
2. Powder spraying method
The application method of spraying powder or dusting with a dusting machine or a dusting machine, and blowing the pesticide powder into the crop after the airflow is blown off. Matters needing attention: Select good quality powder spray equipment; pay attention to the influence of environmental conditions, windy days are not suitable for spraying, powder can not be damp.
3. Casting
A method of application for the application or application of granular pesticides. It is mainly used for soil treatment, paddy application or crop heart application. In addition to granules, other pesticides need to be formulated as toxic soil or poisonous fertilizer. Should pay attention to the quality of the mixture, pesticides and fertilizers can not be stacked for too long. It is necessary to grasp the timing of the application. The application of the paddy field requires the rice field dew to be scattered to prevent the poisonous soil from sticking to the rice leaf to form a phytotoxicity. Sprinkle insecticide requires dew.
4. Splashing method
The liquid of a certain concentration is evenly poured onto the crop, and the liquid is mostly deposited in the lower part of the crop. This is a method for applying rice pests in the south. It should be noted that the safety and dispersibility of the drug, when the safety of the drug is not good, it is not appropriate to use the pouring method. The depth of the water layer is also an important factor affecting the insecticidal effect.
5. Rooting method
A method of applying a certain concentration of liquid medicine into the root zone of a plant. This method is mainly used to control pests and diseases of crop roots, such as underground pests and melon wilt. Influencing factors The primary drug itself is systemic.
6. Seed dressing
The method of uniformly mixing the powder or the liquid with the seed in a certain ratio is called seed dressing. Seed dressing can effectively control underground pests and diseases transmitted by seeds. Note: First, the medicine and seeds must be mixed evenly. Second, the agent must be able to adhere more firmly to the surface of the seed and dry quickly or rarely.
7. Seedling impregnation method
It is a method of using a certain concentration of the agent to impregnate seeds or seedlings, which is a commonly used method for controlling certain kinds of diseases and using plant growth regulators . It should be noted that the temperature, the concentration of the drug solution, and the timing of the treatment are related to each other. Secondly, the newly germinated seeds or seedlings are generally sensitive to the medicament, especially the root reverberation is most obvious, and the treatment is exceptionally stable to prevent the onset of phytotoxicity.
8. Poison bait method
Use bait that can entice pests to feed, plus a certain proportion of stomach poisons mixed into toxic bait or toxic soil to trap harmful organisms. It is often used in the application to replace the bait to get a better effect.
9. Alteration method
The application method of applying the drug's internal absorption conductivity to the high-concentration drug solution through a certain device to the plant. Note that the selection of the agent must have a strong systemic conductivity, and the second part of the modification should be beneficial to plant absorption.
10. Fumigation method
Lifu fumigant is a method of controlling toxic or gasification in a closed or relatively closed place at normal temperature to prevent pests and diseases. It is mainly used in warehouses, compartments, greenhouses and other places.
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